Subclasses may override this.
Subclasses may override this. If this method returns true
, the window may be closed,
otherwise a closure is aborted. By default this always returns true
.
Subclasses may override this.
Subclasses may override this. The tuple is (horizontal, vertical, padding) position.
By default it centers the window, i.e. (0.5f, 0.5f, 20)
.
Subclasses may override this.
Subclasses may override this.